{"id":301743,"date":"2023-08-16T16:38:13","date_gmt":"2023-08-16T16:38:13","guid":{"rendered":"\/forum\/forums\/reply\/301743\/"},"modified":"2023-08-16T16:38:13","modified_gmt":"2023-08-16T16:38:13","slug":"301743","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/301743\/","title":{"rendered":"Reply To: UDF for accessing the interfacial area density of cell"},"content":{"rendered":"<p>&lt;p&gt;Staff can&#8217;t comment beyond what&#8217;s in the manual, but if you read Section 1.3.1 https:\/\/ansyshelp.ansys.com\/account\/Secured?returnurl=\/Views\/Secured\/corp\/v232\/en\/flu_udf\/flu_udf_DEFINEMacros.html%23flu_udf_IncludingUdf_h&nbsp; and use a bit of lateral thinking you may find more information. As the second macro isn&#8217;t in the manual I can&#8217;t say much.&nbsp;&lt;\/p&gt;&lt;p&gt;As a general comment, c &amp; t typically are cell and thread. Whether you need to define the phase domain will depend on whether the value is kept at the phase level or mixure level: that may be model dependent.&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-301743","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/301743","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/301743\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=301743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}